Viagra, Cialis and Levitra – which is best? -

Viagra is a prescription medicine used in the treatment of erectile dysfunction and impotence in men. Viagra Connect is also used to treat erectile dysfunction and is available without the need of a prescription. They both work by increasing blood flow to the penis in order to help a man get and sustain an erection when he is sexually aroused or stimulated. The active ingredient in Viagra is sildenafil and the dose ranges from 25mg to 100mg per tablet. The effects of Viagra will vary from person to person. As a general rule, Viagra is thought to start working in most people from around 30 minutes after taking the drug. It is important to understand that taking Viagra tablets alone will not cause an erection. This medication is used to treat erectile dysfunction (ED). While it helps you temporarily maintain an erection so you can have sex, it does not cure ED. You still need mental or physical stimulation to get an erection. One of the more common side effects is flushing, or redness. 5 Common Causes of Impotence » Viagra is available only with a doctor’s prescription. This medication can cause a decrease in blood pressure, particularly one to two hours after taking it. Beginning with arousal signals from your brain, it takes a finely choreographed series of events to produce an erection. Within the penis are two chambers called the corpora cavernosa. If you already have low blood pressure, discuss the pros and cons of Viagra with your doctor. Nitric oxide (NO) is released in the chambers during sexual stimulation. That increases levels of cyclic guanosine monophosphate (c GMP), which causes muscles to relax. For most people, sexual activity is good for cardiovascular health. However, if you have cardiovascular disease, you should ask your doctor if it’s safe for you to take Viagra. You should also avoid Viagra if your doctor advised you not to have sex. Avoid taking PDE-5 inhibitors if you also use long lasting alpha blockers or take medications that contain nitrates.

How does Viagra work? What is it Used For? Everyday Health

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